Belt tightening and guiding device



Feb. 15,1927. I 1,6173 D. G. ASHTON BELT TIGHTENING AND GUIDING DEVICEFiled Sept. 9, 1925 I I A? I /0 fflsloion I w/2M; V

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Patented Feb, 15 1927.

UNITE DONALD GJ ASHTON; or on'snn've, OKLAHOMA.

BELT 'IIGHTENING nn GUIDING DEVICE.

' Application fi1ed September 9,1925. SeriaINo. 55,381.

whereby the roller may be moved to any an-\ gular position desired, andretained 1n that position.-

With the foregoing and other ob ects1n view, the invention consists in,the novel construction and arrangement of elements described,illustrated and claimed, it being understood'that modifications may bemade within the scope of the claims without departing from the spirit ofthe invention.

In the drawings forming part of this ap- 25 plication: V

' Figure 1 shows the device 1n elevation, the roller being in horizontalposltion, and being shown in dotted lines: in other posii horizontal.

Figure 2 is a the roller or pulley in section and the mount 'ingelements at one end thereof. 7 v

Figure 3 isa sectionon l ne 3-3 of Figure 1.

' The tightening device per se is conveniently mounted between standards10- and 12 supported at the points 13 and 1 1 .on any suitablestationary object, or portion of a' machine or other piece of apparatus.Carried byv standards 10 and 12 are collars such as 15,jone of theseelements being shown in top plan in Figure 3. and illustrated in bothFigures 1 and 3 as being prodevices or set screws 15; The ears are apertured and are adapted to receive a bolt'or other securing'device 18, bymeans'ofwhich the collars are pivotally connected with rods 19 and 20.These rods 19' and 20 extend toward each other, and in Figure 2themanner of connection of rod 19 with themounting means for thepulley,is'illustrated; I

A rollerof suitable length, constituting in tions, at an angle withreference to the fragmentary view showing 'I vided with ears 16 and 17and with retaining a sense a pulley,,is designated22, itbeing'understood that this'element may be of a length correspondingapproximately with v the width of the belt. The endsofi'oller 22 areformed with cone portions 24 one of which'cooperates with flared-bearing2501 tubular element 26 inounted on rod 19, asimilar element beingcarried by rod 20. Fliements 26 are secured with reference to rods 19and 20 by means'of'set screws 27. An

.oil cup, or grease cup, is designated 28, and a duct communloating withthe cup and with the bearing is shown at 29.

When the set screws 27 areloosenedfthe' tubular elements 26 constitutingbearings,

"are adjustable and permitofthe shifting of the roller with reference tothe rods 19' and 20, and longitudinally thereof, so that anydesiredangular position may be secured "when collars 15 are shifted onthe verticalstandards. This makes it possibl to guide the belt away fromany part of the appara- V tus tending toicause injury; to the belt, andalso permits of tightening the bolt through upward or downward movementof the roller, or angular movement thereof. I

Having thus described the invention, what is claimed as new, is :e v '1.A device of the class described, com

prising a plurality of spaced stationary elements, devices adjustablealong said elements, to positions'where the distance betweenthemincreases or decreases, rods pivotally connectedfwith the adjustabledevices and extending toward each other, the rods being'relatively;movable while maintaining alinement, bearings adjustablymounted on therods, and a-roller rotatably mountedibe- V tween the bearings andhaving'its axislin alinement with the rods. i

2. A, device of the class described, cornprising a plurality of spacedstationary elements, collars slidable along said "element's,

means for securing the collars in an adjusted position, rods pivotallyconnected with the collars, 7 bearingelements -adjust luu ably connectedwith the rods said elements last named havingbear-ing surfaces oppositeeach other, a roller position-ed between the approachin endsof thebearing elements," and means or-effect ng ad ustment of said bearingelements, Y t V t In 17651 1111011) whereof I affix mysignatnre.

DO AL e; ASHTON.

